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    A Theory Treatment of Pedestrian-Induced Lateral Vibration of Structure

    Source: Journal of Dynamic Systems, Measurement, and Control:;2018:;volume( 140 ):;issue: 006::page 61004
    Author:
    Yang, Qingshan
    ,
    Gao, Yanan
    DOI: 10.1115/1.4038489
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The lateral excessive sway motion caused by pedestrian traffic has attracted great public attention in the past decades years. However, the theories about exploring the effect of pedestrian on the lateral dynamic properties of structure are scarce. The new contribution of this paper is that a new pedestrian-structure system is proposed for exploring the effect of human on structural dynamic properties based on a sway assumption. Study shows that pedestrian deteriorates the natural frequency of structure and improves structural damping. The influence tendencies of pedestrian on structure can be supported by measurements. The further parametric study shows that the changes of human dynamic parameters have some evident impacts on structural dynamic performances. For example, the increase of leg damping can trigger an improvement of structural damping capacity. In addition, the walking step frequency closing structural harmonic natural frequency can incur the worst response. The increase of step width deteriorates lateral vibration and structural frequency but can slightly improve structural damping. One of essential reasons influencing structural lateral dynamic properties is the dynamic human system including body mass, damping, stiffness, and its motion behavior such as step frequency. This theory is proposed to analyze how pedestrian alters the lateral dynamic performances on those sensitive structures such as the footbridges or stadium bleachers. For example, how the variation of step width influences the change of natural frequency of structure?
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      A Theory Treatment of Pedestrian-Induced Lateral Vibration of Structure

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4254073
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    contributor authorYang, Qingshan
    contributor authorGao, Yanan
    date accessioned2019-02-28T11:13:45Z
    date available2019-02-28T11:13:45Z
    date copyright12/19/2017 12:00:00 AM
    date issued2018
    identifier issn0022-0434
    identifier otherds_140_06_061004.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4254073
    description abstractThe lateral excessive sway motion caused by pedestrian traffic has attracted great public attention in the past decades years. However, the theories about exploring the effect of pedestrian on the lateral dynamic properties of structure are scarce. The new contribution of this paper is that a new pedestrian-structure system is proposed for exploring the effect of human on structural dynamic properties based on a sway assumption. Study shows that pedestrian deteriorates the natural frequency of structure and improves structural damping. The influence tendencies of pedestrian on structure can be supported by measurements. The further parametric study shows that the changes of human dynamic parameters have some evident impacts on structural dynamic performances. For example, the increase of leg damping can trigger an improvement of structural damping capacity. In addition, the walking step frequency closing structural harmonic natural frequency can incur the worst response. The increase of step width deteriorates lateral vibration and structural frequency but can slightly improve structural damping. One of essential reasons influencing structural lateral dynamic properties is the dynamic human system including body mass, damping, stiffness, and its motion behavior such as step frequency. This theory is proposed to analyze how pedestrian alters the lateral dynamic performances on those sensitive structures such as the footbridges or stadium bleachers. For example, how the variation of step width influences the change of natural frequency of structure?
    publisherThe American Society of Mechanical Engineers (ASME)
    titleA Theory Treatment of Pedestrian-Induced Lateral Vibration of Structure
    typeJournal Paper
    journal volume140
    journal issue6
    journal titleJournal of Dynamic Systems, Measurement, and Control
    identifier doi10.1115/1.4038489
    journal fristpage61004
    journal lastpage061004-13
    treeJournal of Dynamic Systems, Measurement, and Control:;2018:;volume( 140 ):;issue: 006
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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